diff --git a/runtime/astar/src/lib.rs b/runtime/astar/src/lib.rs
index 5fce846d5e..44a66d3597 100644
--- a/runtime/astar/src/lib.rs
+++ b/runtime/astar/src/lib.rs
@@ -1190,7 +1190,7 @@ impl frame_support::traits::SortedMembers<AccountId> for OracleMembershipWrapper
 }
 
 parameter_types! {
-    pub MbmServiceWeight: Weight = Perbill::from_percent(80) * RuntimeBlockWeights::get().max_block;
+    pub MbmServiceWeight: Weight = Perbill::from_percent(50) * RuntimeBlockWeights::get().max_block;
 }
 
 impl pallet_migrations::Config for Runtime {
diff --git a/runtime/shibuya/src/lib.rs b/runtime/shibuya/src/lib.rs
index a9ac17147a..1d472cb30a 100644
--- a/runtime/shibuya/src/lib.rs
+++ b/runtime/shibuya/src/lib.rs
@@ -1515,7 +1515,7 @@ impl pallet_collective_proxy::Config for Runtime {
 }
 
 parameter_types! {
-    pub MbmServiceWeight: Weight = Perbill::from_percent(80) * RuntimeBlockWeights::get().max_block;
+    pub MbmServiceWeight: Weight = Perbill::from_percent(50) * RuntimeBlockWeights::get().max_block;
 }
 
 impl pallet_migrations::Config for Runtime {
diff --git a/runtime/shiden/src/lib.rs b/runtime/shiden/src/lib.rs
index 71f67e9503..5b3b7067a1 100644
--- a/runtime/shiden/src/lib.rs
+++ b/runtime/shiden/src/lib.rs
@@ -1189,7 +1189,7 @@ impl frame_support::traits::SortedMembers<AccountId> for OracleMembershipWrapper
 }
 
 parameter_types! {
-    pub MbmServiceWeight: Weight = Perbill::from_percent(80) * RuntimeBlockWeights::get().max_block;
+    pub MbmServiceWeight: Weight = Perbill::from_percent(50) * RuntimeBlockWeights::get().max_block;
 }
 
 impl pallet_migrations::Config for Runtime {